-40%
1pcs OPTOLONG 1.25
1pcs OPTOLONG 1.25
1pcs OPTOLONG 1.25
1pcs OPTOLONG 1.25

1pcs OPTOLONG 1.25" L-Pro Filter for Astromomical Telescope Eyepiece

$ 78.67

Availability: 100 in stock
  • MPN: Does Not Apply
  • Item must be returned within: 30 Days
  • All returns accepted: Returns Accepted
  • Country/Region of Manufacture: China
  • Type: Filter Kit
  • Restocking Fee: No
  • Size: 1.25 in
  • Condition: New
  • Refund will be given as: Money Back
  • Compatible Brand: Universal
  • Brand: Optolong
  • Return shipping will be paid by: Buyer

    Description

    1.25inch Optolong L-Pro Filter for Astronomy Telescope
    Fine-optically polishing for double-sides—— Ensure accurate λ/4 wavefront and <30 seconds parallalism over the both surfaces
    Ultrasonic wave cleaning substrate with purified water—— Cleanup by 13 purified water tank to remove inpurities and dust effectively
    Iro source assisted coating—— For durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
    Constantly stringent quality testing processes—— Each filter was tested by spectrophotometer and laser interferometer testing spectrum and wavefront to ensure market filter is qualified product
    Specifications
    · Tpeak: T>90%
    · Spectrum: 380-750nm
    · Optical Density: Light pollution emission is blocked 90%
    · Surface Quality: 60/40
    · Transmitted Wavefront RMS: λ/4
    · Parallelism (arcsec): 30s
    Package Details
    ·
    1x 1.25inch Optolong L-Pro Filter